<template>
  <div id="app">
    <!-- 顶部 -->
    
    <mt-header fixed title="黑马程序员·Vue项目">
      <span slot="left" @click="goBack" v-show="flag">
        <mt-button icon="back">返回</mt-button>
      </span>
    </mt-header>
    

  <!-- 中间路由组件 -->
  <transition>
    <router-view></router-view>
  </transition>
  


    <!-- 底部 -->
    <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item1" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart">
					<span class="mui-badge" id="badge">{{$store.getters.getAllCount}}</span>
				</span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
  </div>
</template>

<script>
export default {
  name: 'App',
  data(){
    return {
      flag : false
    }
  },
  created(){
     this.flag = this.$route.path === "/home" ? false : true
  },
  methods:{
    goBack(){
      this.$router.go(-1)
    }
  },
  watch:{
    "$route.path": function(newVal) {
      if (newVal === "/home") {
        this.flag = false;
      } else {
        this.flag = true;
      }
    }
  }
}
</script>

<style scoped>
.mint-header {
  z-index: 99;
}
#app {
  font-family: 'Avenir', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* text-align: center; */
  color: #2c3e50;
  padding-top: 40px;
  overflow-x: hidden;
  padding-bottom: 50px;
}

.v-enter {
  opacity: 0;
  transform: translateX(100%);
}
.v-leave-to {
  opacity: 0;
  transform: translateX(-100%);
  position: absolute;
}
.v-enter-active,
.v-leave-active{
  transition: all 0.6s ease;
}

.mui-bar-tab >>> .mui-tab-item1.mui-active {
    color: #007aff;
}

.mui-bar-tab >>> .mui-tab-item1 {
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #929292;
}

.mui-bar-tab >>> .mui-tab-item1 .mui-icon {
    top: 3px;
    width: 24px;
    height: 24px;
    padding-top: 0;
    padding-bottom: 0;
}

.mui-bar-tab >>> .mui-tab-item1 .mui-icon ~ .mui-tab-label {
    font-size: 11px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
}
</style>
